Transformer

What is the usage of a transformer?

• increase voltage

• decrease voltage

• increase or decrease voltage

Transformer that decreases the voltage is called:

• Step up

• Step down

• Transmission cable

• A.C. Generator

Name the part label A

• Primary coil

• Secondary coil

• Soft iron core

• AC output

Transformer with more number of turns on secondary coil is called:

• Primary coil

• Step up transformer

• Step down transformer

• AC input

Name the part label B

• Step down

• Primary coil

• Step up

• Secondary coil

Alternating current (A.C.) is input into the___________________ of the transformer.

• Soft iron

• Secondary coil

• Primary coil

A step down transformer has _________ turns in the secondary coil.

• more

• less

Name the part label C

• Primary coil

• Secondary coil

• soft iron core

• magnet

Which of the following correctly describe this transformer?

• The output voltage is higher than the input voltage

• The output voltage is lower than the input voltage

• The input voltage is equal to the output voltage

Name the transformer between power plant and transmission line

• Step up

• Step down